Toothbrush



FIG. 1 is a front, top, and right perspective view of a toothbrushshowing the new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front elevational thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top plan view thereof.

CLAIM The ornamental design for a toothbrush, as shown and described.